Gregory Robert Billings, MPAS
Surgical Physician Assistant · Tempe, AZ
Gregory Robert Billings, MPAS is a surgical physician assistant with a practice address in Tempe, Arizona, and NPI 1598340044, issued on Mar 16, 2021. Check the license (Arizona 8367, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Robert Billings
- Credential
- MPAS
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- 8367 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1255 W Rio Salado Pkwy Ste 107, Tempe, AZ 85281
- Phone
- (480) 962-0071
- Enumerated
- Mar 16, 2021
- Record last updated
- Jan 20, 2025
- Medicare enrollment
- Enrolled (PECOS I20210406000581); accepts Medicare assignment
- Medical or professional school
- Univeristy Of Texas Rio Grande Valley Med School, 2020
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 420 in Arizona → Look up another NPI →
Also registered at 1255 W Rio Salado Pkwy Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew CorbettOrthopaedic Surgery of the Spine Physician1841723418
- Jason Datta, MDOrthopaedic Surgery of the Spine Physician1700854296
- Vanessa Fisher, PA-CSurgical Physician Assistant1184876492
- Bryce Hilmo, P.A.Medical Physician Assistant1962707869
- Mara Immediato, PA-CSurgical Physician Assistant1538410071
- Alec Sundet, MDOrthopaedic Surgery of the Spine Physician1609307792
Verify Gregory Robert Billings in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 8367Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10.5 times the Medicare Part D claims of the average surgical physician assistant in 2024
3,181 Medicare Part D claims for 471 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 63 claims were for opioids.
Most prescribed
- Atorvastatin Calcium184 claims
- Levothyroxine Sodium131 claims
- Lisinopril106 claims
- Albuterol Sulfate Hfa96 claims
- Losartan Potassium87 claims
- Amlodipine Besylate86 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $128.96
2 payments; by number, the most common kind was food and beverage; the largest payer was Nevro Corp. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Honorhealth AmbulatoryPeoria, AZ
- Summit Medical Group Arizona LLCGoodyear, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Robert Billings among 420 surgical physician assistant records in Arizona
Gregory Robert Billings, MPAS is one of 420 surgical physician assistant records with a practice address in Arizona. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 14% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2020 · median 2015 among the 270 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in Arizona
There are 420 surgical physician assistant records in Arizona.
All 420 in Arizona → Every provider in Tempe → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Vanessa Fisher, PA-CTempe, AZ 852811184876492
- Donald Grace, PATempe, AZ 852811891190062
- Mara Immediato, PA-CTempe, AZ 852811538410071
- Michael Kelley, M.S. PA-CTempe, AZ 852831073571816
- Lanny Oden, C-FATempe, AZ 852831710940192
- Marcy Cruz, RNFAMesa, AZ 852771689638264
- Charles Levesque, PA-CMesa, AZ 852771407005549
- Amanda Davis, PAChandler, AZ 852861700028602
Common questions
What is Gregory Robert Billings, MPAS's NPI number?
Gregory Robert Billings, MPAS's National Provider Identifier (NPI) is 1598340044, issued on Mar 16, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Robert Billings, MPAS located?
The NPPES record lists a practice address at 1255 W Rio Salado Pkwy Ste 107, Tempe, AZ, 85281. Phone: (480) 962-0071. Providers update this record themselves, so call before visiting.
How can I verify Gregory Robert Billings, MPAS's license?
NPPES lists Arizona license number 8367, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory Robert Billings, MPAS prescribe under Medicare Part D?
In 2024, Gregory Robert Billings, MPAS had 3,181 Medicare Part D claims for 471 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.